package com.example.yls.demoa;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.os.Bundle;
import android.os.Parcelable;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Toast;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.List;

import cn.bmob.v3.BmobQuery;
import cn.bmob.v3.exception.BmobException;
import cn.bmob.v3.listener.FindListener;
import cn.bmob.v3.listener.SaveListener;
import cn.bmob.v3.listener.UpdateListener;

/**
 * Created by yls on 2019/5/17.
 */

public class MyView extends View{
    private String matchId="123456";
    private  int mPanelWidth;
    private float mLineHeight;
    private int MAX_LINE=10;
    private int MAX_COUNT_IN_LINE =5;

    private Paint paint = new Paint();

    private Bitmap mWhitePiece;
    private Bitmap mBlackPiece;

    private float ratioPieceOfLineHeight = 3 * 1.0f / 4;

    //白棋先下 当前轮到白棋
    private boolean mIsWhite = true;
    private ArrayList<Point> mWhiteArray = new ArrayList<>();
    private ArrayList<Point> mBlackArray = new ArrayList<>();

    private boolean mIsGameOver;
    private boolean mIsWhiteWinner;


    public MyView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);

        setBackgroundColor(0x44ff0000);
        init();
    }



    /*初始化*/
    private void init() {
        paint.setColor(0x88000000);
        paint.setAntiAlias(true);
        paint.setDither(true);
        paint.setStyle(Paint.Style.STROKE);

        /*找旗子*/
        mWhitePiece = BitmapFactory.decodeResource(getResources(),R.drawable.stone_w2);
        mBlackPiece = BitmapFactory.decodeResource(getResources(),R.drawable.stone_b1);

    }

    /*格子*/
    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int widthSize = MeasureSpec.getSize(widthMeasureSpec);
        int widthMode = MeasureSpec.getMode(widthMeasureSpec);

        int heightSize = MeasureSpec.getSize(heightMeasureSpec);
        int heightMode = MeasureSpec.getSize(heightMeasureSpec);

        int width = Math.min(widthSize,heightSize);

        if (widthMode==MeasureSpec.UNSPECIFIED){
            width = heightSize;
        }else if(heightMode==MeasureSpec.UNSPECIFIED){
            width = widthSize;
        }

        setMeasuredDimension(width,width);
    }


    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        /*格子*/
         mPanelWidth = w;
         mLineHeight = mPanelWidth*1.0f/MAX_LINE;

         /*旗子*/
         int pieceWidth = (int) (mLineHeight*ratioPieceOfLineHeight);
         mWhitePiece = Bitmap.createScaledBitmap(mWhitePiece,pieceWidth,pieceWidth,false);
        mBlackPiece = Bitmap.createScaledBitmap(mBlackPiece,pieceWidth,pieceWidth,false);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {

        if (mIsGameOver) return false;

        int action = event.getAction();
        if (action==MotionEvent.ACTION_UP){
            int x = (int) event.getX();
            int y = (int) event.getY();

            Point p = getValuePoint(x,y);

            if (mWhiteArray.contains(p)||mBlackArray.contains(p)){
                return false;
            }

            if (mIsWhite){
                mWhiteArray.add(p);
            }else {
                mBlackArray.add(p);
            }
            invalidate();
            mIsWhite=!mIsWhite;
            saveToBmob();

        }
        return true;
    }

    private void saveToBmob() {
        BmobQuery<WuziData> wuziDataBmobQuery = new BmobQuery<>();
        wuziDataBmobQuery.addWhereEqualTo("matchId",matchId);
        wuziDataBmobQuery.findObjects(new FindListener<WuziData>() {
            @Override
            public void done(List<WuziData> list, BmobException e) {
                if (e==null && list!=null && list.size()>0){
                    WuziData wuziData = list.get(0);
                    wuziData.setmBlackArray(mBlackArray);
                    wuziData.setmWhiteArray(mWhiteArray);
                    wuziData.setmIsGameOver(mIsGameOver);
                    wuziData.setmIsWhite(mIsWhite);
                    wuziData.setmIsWhiteWinner(mIsWhiteWinner);
                    wuziData.update(new UpdateListener() {
                        @Override
                        public void done(BmobException e) {

                        }
                    });
                }else {
                    WuziData wuziData = new WuziData();
                    wuziData.setMatchId(matchId);
                    wuziData.setmBlackArray(mBlackArray);
                    wuziData.setmWhiteArray(mWhiteArray);
                    wuziData.setmIsGameOver(mIsGameOver);
                    wuziData.setmIsWhite(mIsWhite);
                    wuziData.setmIsWhiteWinner(mIsWhiteWinner);
                    wuziData.save(new SaveListener<String>() {
                        @Override
                        public void done(String s, BmobException e) {

                        }
                    });
                }
            }
        });
    }

    private Point getValuePoint(int x, int y) {
        return  new Point((int) (x/mLineHeight), (int) (y/mLineHeight));
    }


    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        /*画线格格*/
        drawBoard(canvas);

        /*画棋子*/
        drawPieces(canvas);

        /*判断是否gameover*/
        checkGameOver();
    }
    /*判断是否gameover*/
    private void checkGameOver() {
       boolean whiteWin =  checkFiveInLine(mWhiteArray);
        boolean blackWin =  checkFiveInLine(mBlackArray);

        if (whiteWin || blackWin){
            mIsGameOver = true;
            mIsWhiteWinner = whiteWin;

            String text = mIsWhiteWinner ? "白棋胜利" : "黑棋胜利";

            Toast.makeText(getContext(),text,Toast.LENGTH_SHORT).show();
        }
    }

    private boolean checkFiveInLine(List<Point> points) {
        for (Point p: points){
            int x = p.x;
            int y = p.y;

           boolean win =  checkHorizontal(x,y,points);
           if (win) return true;
            win =  checkVertical(x,y,points);
            if (win) return true;
            win =  checkLeftDiagonal(x,y,points);
            if (win) return true;
            win =  checkRDiagonal(x,y,points);
            if (win) return true;
        }
        return false;
    }

    /*判断x，y位置的棋子，是否横向有相邻的五个一致*/
    private boolean checkHorizontal(int x, int y, List<Point> points) {
        int count = 1;
        //左
        for (int i=1;i<MAX_COUNT_IN_LINE;i++){
            if (points.contains(new Point(x-i,y))){
                count++;
            }else {
                break;
            }
        }
        for (int i=1;i<MAX_COUNT_IN_LINE;i++){
            if (points.contains(new Point(x+i,y))){
                count++;
            }else {
                break;
            }
        }
        if (count==MAX_COUNT_IN_LINE) return true;
        return false;
    }

    /*判断x，y位置的棋子，是否竖向有相邻的五个一致*/
    private boolean checkVertical(int x, int y, List<Point> points) {
        int count = 1;
        //上
        for (int i=1;i<MAX_COUNT_IN_LINE;i++){
            if (points.contains(new Point(x,y-i))){
                count++;
            }else {
                break;
            }
        }
        for (int i=1;i<MAX_COUNT_IN_LINE;i++){
            if (points.contains(new Point(x,y+i))){
                count++;
            }else {
                break;
            }
        }
        if (count==MAX_COUNT_IN_LINE) return true;
        return false;
    }

    /*判断x，y位置的棋子，是否左斜方向有相邻的五个一致*/
    private boolean checkLeftDiagonal(int x, int y, List<Point> points) {
        int count = 1;
        //上
        for (int i=1;i<MAX_COUNT_IN_LINE;i++){
            if (points.contains(new Point(x-i,y+i))){
                count++;
            }else {
                break;
            }
        }
        for (int i=1;i<MAX_COUNT_IN_LINE;i++){
            if (points.contains(new Point(x+i,y-i))){
                count++;
            }else {
                break;
            }
        }
        if (count==MAX_COUNT_IN_LINE) return true;
        return false;
    }
    /*判断x，y位置的棋子，是否右斜方向有相邻的五个一致*/
    private boolean checkRDiagonal(int x, int y, List<Point> points) {
        int count = 1;
        //上
        for (int i=1;i<MAX_COUNT_IN_LINE;i++){
            if (points.contains(new Point(x-i,y-i))){
                count++;
            }else {
                break;
            }
        }
        for (int i=1;i<MAX_COUNT_IN_LINE;i++){
            if (points.contains(new Point(x+i,y+i))){
                count++;
            }else {
                break;
            }
        }
        if (count==MAX_COUNT_IN_LINE) return true;
        return false;
    }


    /*画棋子*/
    private void drawPieces(Canvas canvas) {
        for (int i= 0, n = mWhiteArray.size(); i<n;i++){
            Point whitePoint = mWhiteArray.get(i);
            canvas.drawBitmap(mWhitePiece,
                    (whitePoint.x + (1-ratioPieceOfLineHeight) /2)*mLineHeight,
                    (whitePoint.y + (1-ratioPieceOfLineHeight)/2)*mLineHeight,null);
        }
        for (int i= 0, n = mBlackArray.size(); i<n;i++){
            Point blackPoint = mBlackArray.get(i);
            canvas.drawBitmap(mBlackPiece,
                    (blackPoint.x + (1-ratioPieceOfLineHeight) /2)*mLineHeight,
                    (blackPoint.y + (1-ratioPieceOfLineHeight)/2)*mLineHeight,null);
        }

    }

    /*画格子*/
    private void drawBoard(Canvas canvas) {
        int w = mPanelWidth;
        float lineHeight = mLineHeight;

        for (int i = 0; i<MAX_LINE;i++){
            int startX = (int) (lineHeight/2);
            int endX = (int) (w -lineHeight/2);
            int y = (int) ((0.5 + i)*lineHeight);
            canvas.drawLine(startX,y,endX,y,paint);
            canvas.drawLine(y,startX,y,endX,paint);
        }
    }

    /*再来一局*/
    public void start(){
        mWhiteArray.clear();
        mBlackArray.clear();
        mIsGameOver=false;
        mIsWhiteWinner = false;
        invalidate();
    }

    private  static final  String INSTANCE = "instance";
    private  static final  String INSTANCE_GAME_OVER = "instance_game_over";
    private  static final  String INSTANCE_WHITE_ARRAY = "instance_white_array";
    private  static final  String INSTANCE_Black_ARRAY = "instance_black_array";

    @Override
    protected Parcelable onSaveInstanceState() {
        Bundle bundle = new Bundle();
        bundle.putParcelable(INSTANCE,super.onSaveInstanceState());
        bundle.putBoolean(INSTANCE_GAME_OVER,mIsGameOver);
        bundle.putParcelableArrayList(INSTANCE_WHITE_ARRAY,mWhiteArray);
        bundle.putParcelableArrayList(INSTANCE_Black_ARRAY,mBlackArray);
        return bundle;
    }

    @Override
    protected void onRestoreInstanceState(Parcelable state) {
        if (state instanceof  Bundle){
            Bundle bundle = (Bundle) state;
            mIsGameOver = bundle.getBoolean(INSTANCE_GAME_OVER);
            mWhiteArray = bundle.getParcelableArrayList(INSTANCE_WHITE_ARRAY);
            mBlackArray = bundle.getParcelableArrayList(INSTANCE_Black_ARRAY);
            super.onRestoreInstanceState(bundle.getParcelable(INSTANCE));
            return;
        }

        super.onRestoreInstanceState(state);
    }
    public  void  setData(WuziData wuziData) {
        this.mIsGameOver = wuziData.getmIsGameOver();
        this.mIsWhite = wuziData.getmIsWhite();
        this.mWhiteArray = wuziData.getmWhiteArray();
        this.mBlackArray = wuziData.getmBlackArray();
        invalidate();
    }
}
